Number | Name | Date | Kind |
---|---|---|---|
865584 | Fulton et al. | Sep 1907 | |
1563122 | Uzzell | Nov 1925 | |
1712340 | Fankhauser et al. | May 1929 | |
1854473 | Laborda | Apr 1932 | |
2525458 | Peterson | Oct 1950 | |
2848231 | Propst | Aug 1958 | |
3176983 | Barber | Apr 1965 | |
3633904 | Kojima | Jan 1972 | |
3787046 | Clem | Jan 1974 | |
3840225 | Fouche | Oct 1974 | |
3863407 | Eucken | Feb 1975 | |
3874136 | Michel | Apr 1975 | |
3905596 | Barber | Sep 1975 | |
4152933 | Woodhouse | May 1979 | |
4917374 | Petz | Apr 1990 | |
5046719 | Comstock et al. | Sep 1991 | |
5209361 | Grubb, Jr. | May 1993 |
Entry |
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Four (4) photographs of Hy-Ball device, 1959. |